ADT Unimode 400 Multi-Net Installation Manual page 161

Releasing Applications
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Unimode 400 Installation PN 50710A 10/22/97
You can use M500CH modules for releasing circuits. Each module can control 1 A of
current. Make sure to keep total system current within the limits of the power supply.
You can power the M500CH from the MPS-400 or any UL-listed 24 VDC
power-limited power supply for Fire Protective Signaling. For more information, refer
to the Device Compatibility Document.
1. For NFPA 13 and 15 applications, disable the Soak Timer (Soak=0000); for NFPA
16 applications, set the Soak Timer (0600-0900 seconds). Refer to the
Unimode 400 Programming Manual for instructions on setting the Soak Timer.
2. In applications not requiring power-limited circuits – a) End-of-Line devices
(PN REL-47K) are not required; however, the releasing device circuit is not
supervised against shorts; b) limited energy cable cannot be used for wiring of a
releasing device circuit; c) Maintain a 0.25 inch spacing between the releasing
circuit device wiring and any power-limited circuit wiring; and d) Program the
releasing circuit for type code RELEASE CKT.
3. Each circuit is power-limited and supervised.
4. Program the M500CH for type code REL CKT ULC.
Figure 5-17 shows typical connections for wiring a releasing device to an M500CH
module:
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